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Interfacing with your car's computer?

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  • Interfacing with your car's computer?

    Does anyone know, or have tried, to build an interface and connect, say, your laptop to your 'computer' in your car? I.E., I see these performance chips for sale to 'reprogram' your cars chip or computer. Was just thinking it would be cool to hit a couple of keys on my laptop and change the performance settings on my car. Anyone ever toyed with that idea?
    I got a .45 and a shovel, and I ain't afraid to use either.

  • #2
    Re: Interfacing with your car's computer?

    Originally posted by bpitt View Post
    Does anyone know, or have tried, to build an interface and connect, say, your laptop to your 'computer' in your car? I.E., I see these performance chips for sale to 'reprogram' your cars chip or computer. Was just thinking it would be cool to hit a couple of keys on my laptop and change the performance settings on my car. Anyone ever toyed with that idea?
    There are at least a couple of setups on the market that will do exactly that.

    Google for "OBD-II" along with "laptop" or "computer" OBD-II is the name of the automotive interface/bus that has been standard since 1996. From there you should be able to narrow down what kind of capabilities you need.

    One example: http://www.nology.com/laptopdyno.html
    Thorn
    "If you can't be a good example, then you'll just have to be a horrible warning." - Catherine Aird

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    • #3
      Re: Interfacing with your car's computer?

      I've got OBD-II, and OBD-III analyzers, but no PC interface equipment. Last time I checked even cheap haggard OBD equipment was around two hundred bucks.

      Some models of cars don't use EPROM, so you can program, and configure the timing without getting a replacement chip. There was an interesting project under GNU that interfaced with OBD through Linux called DashBoard Linux. Not sure what happened to it.

      There are also older systems Pre-OBD like M.E.C.S. My old 89 MX6 had M.E.C.S, and I couldn't find a interface solution to tune the turbo timing.
      Last edited by VAX_to_PBX; February 15, 2007, 02:30.

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